A multi-scale three-dimensional finite element analysis of polymeric rubber foam reinforced by carbon nanotubes under tensile loads

A multi-scale FEM analysis was set up using two different unit cells to estimate the properties of a nanoparticle-reinforced rubber foam from the base material. Rubber foam was made up of EPDM rubber and reinforced by multiwall carbon nanotubes. This analysis was performed in two stages. In the firs...

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Bibliographic Details
Published in:Iranian polymer journal 2019-02, Vol.28 (2), p.135-144
Main Authors: Shojaei Dindarloo, Alireza, Karrabi, Mohammad, Ghoreishy, Mir Hamid Reza
Format: Article
Language:English
Subjects:
Boundary conditions
Boundary element method
Carbon
Ceramics
Chemistry
Chemistry and Materials Science
Composites
Computational fluid dynamics
Computer simulation
Finite element method
Glass
Mathematical models
Mechanical properties
Multi wall carbon nanotubes
Multiscale analysis
Nanocomposites
Nanoparticles
Natural Materials
Numerical analysis
Original Research
Parameters
Polymer Sciences
Porosity
Rubber
Tensile stress
Tensile tests
Three dimensional analysis
Unit cell
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Summary:A multi-scale FEM analysis was set up using two different unit cells to estimate the properties of a nanoparticle-reinforced rubber foam from the base material. Rubber foam was made up of EPDM rubber and reinforced by multiwall carbon nanotubes. This analysis was performed in two stages. In the first stage, the mechanical behavior of polymeric nanocomposite was predicted under uniaxial tension using the unit cell type I; in the second stage, the overall foam behavior was predicted by implementing the results of the first stage in unit cell type II as a constitutive material, with both cell types being in different dimensional scales. The polymeric material was assumed as an incompressible media and Ogden hyperelastic model was used as a material model. Both simulation stages incorporated unit cells as representative volume element and periodic boundary conditions. Polymeric material parameters for Ogden hyperelastic model were calculated using tensile testing of vulcanized pure EPDM. To validate the model, numerical analysis results were compared to experimental tensile tests of nanoparticle-reinforced foam, which was prepared with similar density and nanoparticle content as in the simulation. The foam porosity size and content of carbon nanotubes were adjustable in this study using unit cell parameters.
ISSN:1026-1265
1735-5265
DOI:10.1007/s13726-018-00685-0